153results about How to "Continuous separation" patented technology

The invention relates to disposable device for the continuous centrifugal separation of a physiological fluid. The inventive device comprises: a fixed axial element; a centrifugation chamber which is mounted such that it can rotate around the axis of said element; an inlet channel for the blood to be centrifuged, the dispensing port of which is located close to the base of the chamber; and an outlet passage for a separated constituent, the inlet port of which is located close to the other end of the chamber in a concentrated area of one of the separated constituents having the lowest mass density in order for same to be removed continuously. The above-mentioned chamber takes the form of a long tube. The fixed axial element comprises a second outlet passage for a second of the separated constituents, the inlet port of which is located close to the end of the chamber opposite the above-mentioned base in a concentrated area of said second separated constituent having the highest mass density in order for same to be removed continuously.

The invention discloses an automatic dismantling and separating device for a waste dry cell and a dismantling and separating method, The automatic dismantling and separating device comprises a roller, a belt, a grinding wheel group, a firing pin, a cutter and a vibrating screen, wherein the conveyor belt is provided with a plurality of rubber partition plates; the grinding wheel group is arranged on the conveyor belt; the first side of the conveyor belt is provided with the cutter and the firing pin; the second side of the conveyor belt is provided with the vibrating screen. A first roller, a grinding wheel, the cutter and the firing pin are powered on; the waste dry cells are fixedly arranged between two adjacent partition plates of the belt one by one. Along with the movement of the belt, two ends of each waste dry cell are cut off by the grinding wheel rotating at high speed, paste and a carbon bar of the dry cell are pushed out of a shell of the dry cell through the firing pin, and a zinc skin is separated from a plastic skin through the cutter. The automatic dismantling and separating device and dismantling and separating method for the waste dry cell have the advantages that a paste electrolyte, a zinc drum and the carbon bar can be comprehensively recycled, and the processing working efficiency and a separation effect of the waste dry cell can be improved.

A process and apparatus for the collection of biological materials from air. Collection and separation devices utilize a novel membrane structure formed from a functionalized inorganic mesoporous membrane supported by porous substrate.

An improved method for separating whole blood into components and collecting a desired blood component. The method allows a desired blood component to be subjected to centrifugal forces within a separator for prolonged periods of time, yielding a cleaner cut and higher yield of the desired blood component. Whole blood is drawn from a source and pumped into a separator, the undesired blood components are removed from the separator at rates so as to build up the desired blood component in the separator. The desired blood component is only removed after a predetermined amount of the desired blood component has built up in the separator. It is preferred that the desired blood component be buffy coat and that the method be used to perform photopheresis treatments. In another aspect, the invention is a method of performing a full photopheresis treatment to treat diseases in a reduced time, preferably less than about 70 minutes, and more preferably less than about 45 minutes.

The invention relates to a method for producing low-phosphorous dimer acid and provides a method for producing dimer acid with low phosphor content. The method is characterized in that oleic acid is polymerized by catalysts of carclazyte, phosphoric acid and the like to obtain crude polymerized acid; the crude polymerized acid is washed by water; a centrifugal separation device is used for separating the polymerized acid from the water continuously to remove excessive phosphate and other filtered solid impurity to obtain low-phosphorous polymerized acid. The washing condition is as follows: the proportion of the polymerized acid and water (W/W) is 1: 0.1-10; the washing temperature is 10 DEG C to 100 DEG C; and the washing time is 0.1h to 3h. Molecular distillation is carried out on the low-phosphorous polymerized acid to obtain the low-phosphorous dimer acid and a side product of monomer acid. The invention increases the working procedures of washing and separating, thereby ensuring that the content of the phosphate of the dimer acid is reduced to be lower than 30mu g/g, reducing the content of the impurity in the dimer acid and improving the quality of the dimer acid and the downstream product.

The recovery process includes the following steps: 1. making the produced waste gas pass through the control valve and filtering in the gas filter; 2. cooling waste gas including toluene in the cooler; 3. pressurizing with the high pressure blower and adsorbing with active carbon in three adsorbing tanks; 4. switching to desorption program through closing the waste gas valve and opening the steam valve for steam to enter the active carbon, with the toluene separated from the active carbon being exhausted together with the steam from the bottom of the adsorbing tanks; 5. condensing the steam with toluene gas to form mixture liquid of toluene and water; 6. separating the mixture liquid of light toluene and heavy water in a separator; and 7. storing toluene in a tank. The process has toluene recovering rate over 86 % and low cost.

The invention discloses a rainwater pollutant interception well adopting cyclone separation. The well comprises a shaft and is characterized in that a cyclone unit and a precipitation unit positioned under the cyclone unit are arranged in the shaft; the cyclone unit comprises a cyclone cylinder and an inner cylinder arranged in the cyclone cylinder; outer annular spaces for rainwater to pass through in a cyclone manner are reserved at intervals between the cyclone cylinder and the shaft; a water inlet pipe communicated with the outer annular spaces is connected to the shaft; inner annular spaces for the rainwater to pass through in the cyclone manner are reserved at intervals between the inner cylinder and the cyclone cylinder; a water outlet pipe communicated with the inner annular spaces is connected to the cyclone cylinder; and the precipitation unit comprises a funnel arranged below the inner cylinder and fixed with the inner wall of the shaft, and a storage tank positioned below the funnel. According to the well, the effect of separating pollutants in the rainwater is achieved through centrifugal force generated by a cyclone effect; and the well serving as a rainwater pretreatment device can greatly reduce the pollutants flowing into river channels to ensure the unobstruction of a downstream pipe network.

The invention belongs to the field of natural organic chemistry, and relates to a method for purifying aloe polysaccharides, particularly a preparation method for enriching and purifying aloe polysaccharides in aloe by a high-speed countercurrent chromatography separation process. The method is characterized by purifying natural plant aloe leaching liquor twice by a high-speed countercurrent chromatography separation process to obtain aloe polysaccharides of which the purity is higher than 95%. The method is suitable for preparing high-purity aloe polysaccharides from natural plants containing aloe polysaccharides and extracts of the natural plants. The method is suitable for preparing aloe polysaccharides by separating with various types of countercurrent chromatographs, and the aloe polysaccharides prepared by the high-speed countercurrent chromatography process can be continuously, efficiently and quickly separated by liquid-liquid partition chromatography; and thus, the method has the characteristics of great separation amount, no sample loss, high recovery rate, mild separation environment, solvent saving and the like.

In the ketone oxamidinating reaction system with water mutually soluble low-carbon alcohol of 30-50 wt% concentration and excessive ammonia water content, the material including titania-silica molecular sieve is deposited at 60-85 deg.c in deposition rate of 0.5-3 cm/min for at least 10 min. The present invention can realize the continuous separation of titania-silica molecular sieve from reaction liquid and is suitable for cyclohexanone oxamidinating reaction system with titania-silica molecular sieve catalyst of 0.1-0.3 micron size.

The invention discloses an electric control ion exchange device and an electric control ion exchange method which are capable of separating and recycling negative and positive ions in a weak solution continuously, synchronously and selectively. The ion separating and recycling device consists of an electroactivity ion exchange function membrane electrode, a controllable rotary closed concentric double-layer sleeve inert electrode, an external power source and a motor system, wherein the electroactivity ion exchange function membrane electrode consists of concentric cylinders and concentric drums which are provided with selective adsorption/desorption negative and positive ions under oxidation/reduction potential; oxidation/reduction potential is alternatively applied to membrane electrodes by an external power supply; meanwhile, the concentric double-layer sleeve inert electrode between the two membrane electrodes is controlled to be opened and closed; negative and positive ions in the weak solution are continuously separated and recycled by being combined with an external liquid path supplying system. An ion exchange membrane or a diaphragm electrode is not required for the device provided by the invention, the structure is simple, and the operation is convenient; ions in the solution are directly adsorbed/desorbed on/from the surface of the membrane electrodes; the ion dispersion and transmitting speed is high, and the separation efficiency is high; the membrane electrode can run continuously.

A process for preparing high-purity rhodioloside from natural rhodiola rosea by high-speed counter-current chromatography includes extracting by high-speed counter-current chromatography and purifying twice to obtain high-purity product. Its advantages are high purity (98%), and high output rate, and saving solvent.

The invention relates to a method for separating and recovering phosphoric acid from acetic acid-nitric acid-phosphoric acid series mixed acid waste liquor. The method disclosed by the invention is characterized by comprising the following steps of: an acetic acid-nitric acid extracting step: mixing waste liquor containing acetic acid, nitric acid and phosphoric acid with an extracting agent solution of aliphatic series straight-chain saturated hydrocarbon which contains phosphoric trialkyl ester and 6-13 carbon atoms and selectively dissolving and extracting acetic acid and nitric acid from the extracting agent solution; a phosphoric acid recovering step: recovering the phosphoric acid from extracting waste liquor obtained in the extraction step; and an acetic acid-nitric acid stripping step: enabling the extracting agent solution containing the acetic acid and the nitric acid, obtained in the acetic acid-nitric acid extracting step, to be in contact with stripping water so that the acetic acid and the nitric acid are dissolved and transferred to the stripping water. The extracting agent solution is recycled by feeding the oil-phase extracting agent solution obtained in the acetic acid-nitric acid stripping step to the acetic acid-nitric acid extracting step. By means of the invention, the favorable separability of oil phase and aqueous phase in the stripping step can be maintained for a long time, and the phosphoric acid can be selectively and favorably separated and recovered from the acetic acid-nitric acid-phosphoric acid series mixed acid waste liquor for a long time with high efficiency.

The invention relates to method for continuously purifying and refining ortho toludiamine. The method comprises the steps of: carrying out rectification by two towers connected in series, removing a front fraction of an ortho toludiamine crude product through a light component removing tower, and rectifying and separating out ortho toludiamine and meta-toluenediamine through a product tower. The method has the advantages that rectification is carried out by the two towers connected in series; and the ortho toludiamine, the meta-toluenediamine, monamine and other impurities can be continuously separated, and the purity of the ortho toludiamine can be up to over 99.5%.

The invention relates to a solvent recovery and separation device. This device can separate and recover the solvent 100% in a continuous process, which has seal container with five separated solvent chamber, mixed solvent inlet on the No.1 bumping chamber, organic solvent outlet and dreg release opening on the No.1 oil reservation chamber, water exhaust of the No.1 and No.2 oil reservation chamber and No.1 bumping chamber, water outlet for No.2 bumping chamber, gear oil pump at the outlet of the solvent, magnetic floating ball liquid level switch at the top of the No.1 oil storage chamber. The bottom of the No.1 bumping chamber connects with the water reservation chamber, top of the No.1 bumping chamber connects with the No.2 oil reservation chamber, bottom of the No.2 bumping chamber connects with the water storage chamber through passages with the water storage chamber having water blocks allowing water coming into No.1 bumping chamber from the top of the block. Top of the water reservation chamber connects with the No.2 bumping chamber. The No.2 oil reservation chamber connects with the No.1 oil reservation chamber through its top. The outlet of solvent for No.1 oil reservation connects to the organic solvent storage can through gear oil pump.

The invention relates to an annular fluidized bed separator of a particle mixture. The upper end of a center lifting pipe extends into an annular fluidized bed by a certain height, so that the annular fluidized bed is divided into an annular area at the lower part and a cylindrical area at the upper part; an air inlet and a wind distribution plate are respectively arranged at the bottoms of the center lifting pipe and the annular fluidized bed; a feed port is formed in the bottom of the center lifting pipe; a heavy particle outlet is formed in the bottom of an annular area of the annular fluidized bed, and is connected with a heavy particle collecting tank; and an airflow outlet at the top of the annular fluidized bed is connected to a light particle collecting tank by a cyclone separator. The particle mixture is quickly fluidized in the center lifting pipe for primary dispersion, and is ascended along with air currents to enter the annular fluidized bed for secondary dispersion. The annular fluidized bed separator can continuously and quickly perform high-efficiency separation for light and heavy particle mixtures under the condition of normal temperature or high temperature. The annular fluidized bed separator can be coupled with a circulating fluidized bed reactor system, and can continuously and stably operate.

The invention discloses a banknote and coin separating mechanism which comprises an accommodation cylinder, a piston, a first driving device and a second driving device, wherein at least one end of the accommodation cylinder is an open end, and the accommodation cylinder is provided with a plurality of holes for allowing coins to drop; the piston is matched with the inner surface of the accommodation cylinder, and a separation space is formed between the piston and the open end; the first driving device drives the accommodation cylinder to rotate around the axis of the accommodation cylinder; the second driving device drives the piston to reciprocate in the accommodation cylinder to change the volume size of the separation space; and the separation space is used for receiving banknotes and coins in the volume-enlarging process, and used for pushing out the banknotes in the separation space from the open end in the volume-reducing process. When banknote and coin separating mechanism separates the banknotes and coins, the banknotes are not easy to damage, the noise is small, the separation efficiency is high, and the banknotes can be collected easily.

The invention relates to the field of medical instrument experiment equipment and in particular relates to a blood platelet separation device which comprises a shell, a motor, a spline shaft, a rotating disc and a vibration mechanism, wherein the motor is arranged inside the inner cavity of the shell; the spline shaft is connected with a motor output shaft; the rotating disc is mounted on the spline shaft in match; the vibration mechanism is used for controlling the rotating disc to vibrate intermittently in an axial direction of the spline shaft; the rotating disc takes the shape of a conicalplatform; a plurality of test tube clamps are arranged at intervals on the conical surface of the rotating disc; a centrifuge tube is fixedly arranged in any one test tube clamp; each centrifuge tubecomprises a fist tube body of which two ends are opened, and a second tube body of which one end is sealed and the other end is opened; one opened end of the first tube body is connected with the opened end of the second tube body through a connecting tube; a bovine serum agarose gel filtering layer is arranged inside the connecting tube; the other opened end of the first tube body is sealed through a test tube plug. The blood platelet separation device is high in separation efficiency, simple to operate and capable of thoroughly separating blood platelet from substances such as other blood cells and plasma proteins in whole blood.